src/mesa/drivers/common/meta_tex_subimage.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2015 Intel Corporation.  All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Jason Ekstrand <jason.ekstrand@intel.com>
  26  */
  27
  28 #include "bufferobj.h"
  29 #include "buffers.h"
  30 #include "fbobject.h"
  31 #include "glformats.h"
  32 #include "glheader.h"
  33 #include "image.h"
  34 #include "macros.h"
  35 #include "meta.h"
  36 #include "pbo.h"
  37 #include "readpix.h"
  38 #include "shaderapi.h"
  39 #include "state.h"
  40 #include "teximage.h"
  41 #include "texobj.h"
  42 #include "texstate.h"
  43 #include "uniforms.h"
  44 #include "varray.h"
  45
  46 static struct gl_texture_image *
  47 create_texture_for_pbo(struct gl_context *ctx, bool create_pbo,
  48                        GLenum pbo_target, int width, int height,
  49                        GLenum format, GLenum type, const void *pixels,
  50                        const struct gl_pixelstore_attrib *packing,
  51                        GLuint *tmp_pbo, GLuint *tmp_tex)
  52 {
  53    uint32_t pbo_format;
  54    GLenum internal_format;
  55    unsigned row_stride;
  56    struct gl_buffer_object *buffer_obj;
  57    struct gl_texture_object *tex_obj;
  58    struct gl_texture_image *tex_image;
  59    bool read_only;
  60
  61    if (packing->SwapBytes ||
  62        packing->LsbFirst ||
  63        packing->Invert)
  64       return NULL;
  65
  66    pbo_format = _mesa_format_from_format_and_type(format, type);
  67    if (_mesa_format_is_mesa_array_format(pbo_format))
  68       pbo_format = _mesa_format_from_array_format(pbo_format);
  69
  70    if (!pbo_format || !ctx->TextureFormatSupported[pbo_format])
  71       return NULL;
  72
  73    /* Account for SKIP_PIXELS, SKIP_ROWS, ALIGNMENT, and SKIP_IMAGES */
  74    pixels = _mesa_image_address3d(packing, pixels,
  75                                   width, height, format, type, 0, 0, 0);
  76    row_stride = _mesa_image_row_stride(packing, width, format, type);
  77
  78    if (_mesa_is_bufferobj(packing->BufferObj)) {
  79       *tmp_pbo = 0;
  80       buffer_obj = packing->BufferObj;
  81    } else {
  82       bool is_pixel_pack = pbo_target == GL_PIXEL_PACK_BUFFER;
  83
  84       assert(create_pbo);
  85
  86       _mesa_GenBuffers(1, tmp_pbo);
  87
  88       /* We are not doing this inside meta_begin/end.  However, we know the
  89        * client doesn't have the given target bound, so we can go ahead and
  90        * squash it.  We'll set it back when we're done.
  91        */
  92       _mesa_BindBuffer(pbo_target, *tmp_pbo);
  93
  94       /* In case of GL_PIXEL_PACK_BUFFER, pass null pointer for the pixel
  95        * data to avoid unnecessary data copying in _mesa_BufferData().
  96        */
  97       if (is_pixel_pack)
  98          _mesa_BufferData(pbo_target, row_stride * height, NULL,
  99                           GL_STREAM_READ);
 100       else
 101          _mesa_BufferData(pbo_target, row_stride * height, pixels,
 102                           GL_STREAM_DRAW);
 103
 104       buffer_obj = packing->BufferObj;
 105       pixels = NULL;
 106
 107       _mesa_BindBuffer(pbo_target, 0);
 108    }
 109
 110    _mesa_GenTextures(1, tmp_tex);
 111    tex_obj = _mesa_lookup_texture(ctx, *tmp_tex);
 112    _mesa_initialize_texture_object(ctx, tex_obj, *tmp_tex, GL_TEXTURE_2D);
 113    /* This must be set after _mesa_initialize_texture_object, not before. */
 114    tex_obj->Immutable = GL_TRUE;
 115    /* This is required for interactions with ARB_texture_view. */
 116    tex_obj->NumLayers = 1;
 117
 118    internal_format = _mesa_get_format_base_format(pbo_format);
 119
 120    tex_image = _mesa_get_tex_image(ctx, tex_obj, tex_obj->Target, 0);
 121    _mesa_init_teximage_fields(ctx, tex_image, width, height, 1,
 122                               0, internal_format, pbo_format);
 123
 124    read_only = pbo_target == GL_PIXEL_UNPACK_BUFFER;
 125    if (!ctx->Driver.SetTextureStorageForBufferObject(ctx, tex_obj,
 126                                                      buffer_obj,
 127                                                      (intptr_t)pixels,
 128                                                      row_stride,
 129                                                      read_only)) {
 130       _mesa_DeleteTextures(1, tmp_tex);
 131       _mesa_DeleteBuffers(1, tmp_pbo);
 132       return NULL;
 133    }
 134
 135    return tex_image;
 136 }
 137
 138 bool
 139 _mesa_meta_pbo_TexSubImage(struct gl_context *ctx, GLuint dims,
 140                            struct gl_texture_image *tex_image,
 141                            int xoffset, int yoffset, int zoffset,
 142                            int width, int height, int depth,
 143                            GLenum format, GLenum type, const void *pixels,
 144                            bool allocate_storage, bool create_pbo,
 145                            const struct gl_pixelstore_attrib *packing)
 146 {
 147    GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 };
 148    int full_height, image_height;
 149    struct gl_texture_image *pbo_tex_image;
 150    GLenum status;
 151    bool success = false;
 152    int z;
 153
 154    if (!_mesa_is_bufferobj(packing->BufferObj) &&
 155        (!create_pbo || pixels == NULL))
 156       return false;
 157
 158    if (format == GL_DEPTH_COMPONENT ||
 159        format == GL_DEPTH_STENCIL ||
 160        format == GL_STENCIL_INDEX ||
 161        format == GL_COLOR_INDEX)
 162       return false;
 163
 164    if (ctx->_ImageTransferState)
 165       return false;
 166
 167    /* For arrays, use a tall (height * depth) 2D texture but taking into
 168     * account the inter-image padding specified with the image height packing
 169     * property.
 170     */
 171    image_height = packing->ImageHeight == 0 ? height : packing->ImageHeight;
 172    full_height = image_height * (depth - 1) + height;
 173
 174    pbo_tex_image = create_texture_for_pbo(ctx, create_pbo,
 175                                           GL_PIXEL_UNPACK_BUFFER,
 176                                           width, full_height,
 177                                           format, type, pixels, packing,
 178                                           &pbo, &pbo_tex);
 179    if (!pbo_tex_image)
 180       return false;
 181
 182    if (allocate_storage)
 183       ctx->Driver.AllocTextureImageBuffer(ctx, tex_image);
 184
 185    _mesa_meta_begin(ctx, ~(MESA_META_PIXEL_TRANSFER |
 186                            MESA_META_PIXEL_STORE));
 187
 188    _mesa_GenFramebuffers(2, fbos);
 189    _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]);
 190    _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]);
 191
 192    if (tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
 193       assert(depth == 1);
 194       assert(zoffset == 0);
 195       depth = height;
 196       height = 1;
 197       image_height = 1;
 198       zoffset = yoffset;
 199       yoffset = 0;
 200    }
 201
 202    _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 203                              pbo_tex_image, 0);
 204    /* If this passes on the first layer it should pass on the others */
 205    status = _mesa_CheckFramebufferStatus(GL_READ_FRAMEBUFFER);
 206    if (status != GL_FRAMEBUFFER_COMPLETE)
 207       goto fail;
 208
 209    _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 210                              tex_image, zoffset);
 211    /* If this passes on the first layer it should pass on the others */
 212    status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
 213    if (status != GL_FRAMEBUFFER_COMPLETE)
 214       goto fail;
 215
 216    _mesa_update_state(ctx);
 217
 218    if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 219                                   0, 0, width, height,
 220                                   xoffset, yoffset,
 221                                   xoffset + width, yoffset + height,
 222                                   GL_COLOR_BUFFER_BIT, GL_NEAREST))
 223       goto fail;
 224
 225    for (z = 1; z < depth; z++) {
 226       _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 227                                 tex_image, zoffset + z);
 228
 229       _mesa_update_state(ctx);
 230
 231       _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 232                                  0, z * image_height,
 233                                  width, z * image_height + height,
 234                                  xoffset, yoffset,
 235                                  xoffset + width, yoffset + height,
 236                                  GL_COLOR_BUFFER_BIT, GL_NEAREST);
 237    }
 238
 239    success = true;
 240
 241 fail:
 242    _mesa_DeleteFramebuffers(2, fbos);
 243    _mesa_DeleteTextures(1, &pbo_tex);
 244    _mesa_DeleteBuffers(1, &pbo);
 245
 246    _mesa_meta_end(ctx);
 247
 248    return success;
 249 }
 250
 251 bool
 252 _mesa_meta_pbo_GetTexSubImage(struct gl_context *ctx, GLuint dims,
 253                               struct gl_texture_image *tex_image,
 254                               int xoffset, int yoffset, int zoffset,
 255                               int width, int height, int depth,
 256                               GLenum format, GLenum type, const void *pixels,
 257                               const struct gl_pixelstore_attrib *packing)
 258 {
 259    GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 };
 260    int full_height, image_height;
 261    struct gl_texture_image *pbo_tex_image;
 262    struct gl_renderbuffer *rb = NULL;
 263    GLenum status;
 264    bool success = false;
 265    int z;
 266
 267    if (!_mesa_is_bufferobj(packing->BufferObj))
 268       return false;
 269
 270    if (format == GL_DEPTH_COMPONENT ||
 271        format == GL_DEPTH_STENCIL ||
 272        format == GL_STENCIL_INDEX ||
 273        format == GL_COLOR_INDEX)
 274       return false;
 275
 276    if (ctx->_ImageTransferState)
 277       return false;
 278
 279
 280    if (!tex_image) {
 281       rb = ctx->ReadBuffer->_ColorReadBuffer;
 282       if (_mesa_need_rgb_to_luminance_conversion(rb->Format, format))
 283          return false;
 284    }
 285
 286    /* For arrays, use a tall (height * depth) 2D texture but taking into
 287     * account the inter-image padding specified with the image height packing
 288     * property.
 289     */
 290    image_height = packing->ImageHeight == 0 ? height : packing->ImageHeight;
 291    full_height = image_height * (depth - 1) + height;
 292
 293    pbo_tex_image = create_texture_for_pbo(ctx, false, GL_PIXEL_PACK_BUFFER,
 294                                           width, full_height * depth,
 295                                           format, type, pixels, packing,
 296                                           &pbo, &pbo_tex);
 297    if (!pbo_tex_image)
 298       return false;
 299
 300    _mesa_meta_begin(ctx, ~(MESA_META_PIXEL_TRANSFER |
 301                            MESA_META_PIXEL_STORE));
 302
 303    _mesa_GenFramebuffers(2, fbos);
 304
 305    if (tex_image && tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
 306       assert(depth == 1);
 307       assert(zoffset == 0);
 308       depth = height;
 309       height = 1;
 310       image_height = 1;
 311       zoffset = yoffset;
 312       yoffset = 0;
 313    }
 314
 315    /* If we were given a texture, bind it to the read framebuffer.  If not,
 316     * we're doing a ReadPixels and we should just use whatever framebuffer
 317     * the client has bound.
 318     */
 319    if (tex_image) {
 320       _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]);
 321       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 322                                 tex_image, zoffset);
 323       /* If this passes on the first layer it should pass on the others */
 324       status = _mesa_CheckFramebufferStatus(GL_READ_FRAMEBUFFER);
 325       if (status != GL_FRAMEBUFFER_COMPLETE)
 326          goto fail;
 327    } else {
 328       assert(depth == 1);
 329    }
 330
 331    _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]);
 332    _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 333                              pbo_tex_image, 0);
 334    /* If this passes on the first layer it should pass on the others */
 335    status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
 336    if (status != GL_FRAMEBUFFER_COMPLETE)
 337       goto fail;
 338
 339    _mesa_update_state(ctx);
 340
 341    if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 342                                   xoffset, yoffset,
 343                                   xoffset + width, yoffset + height,
 344                                   0, 0, width, height,
 345                                   GL_COLOR_BUFFER_BIT, GL_NEAREST))
 346       goto fail;
 347
 348    for (z = 1; z < depth; z++) {
 349       _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 350                                 tex_image, zoffset + z);
 351
 352       _mesa_update_state(ctx);
 353
 354       _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
 355                                  xoffset, yoffset,
 356                                  xoffset + width, yoffset + height,
 357                                  0, z * image_height,
 358                                  width, z * image_height + height,
 359                                  GL_COLOR_BUFFER_BIT, GL_NEAREST);
 360    }
 361
 362    success = true;
 363
 364 fail:
 365    _mesa_DeleteFramebuffers(2, fbos);
 366    _mesa_DeleteTextures(1, &pbo_tex);
 367    _mesa_DeleteBuffers(1, &pbo);
 368
 369    _mesa_meta_end(ctx);
 370
 371    return success;
 372 }